Home / 3,628.40-5,438.88-2,458.51

Finding the Fourth Proportional to 3,628.40, 5,438.88 and 2,458.51

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Solution

The fourth proportional to 3,628.40, 5,438.88 and 2,458.51 is: 3,685.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,628.40 : 5,438.88 = 2,458.51 : x
  2. Step 2: Convert to fraction form
    3,628.40/5,438.88 = 2,458.51/x
  3. Step 3: Cross multiply
    3,628.40x = 5,438.88 × 2,458.51
  4. Step 4: Simplify right side
    3,628.40x = 13,371,527.27
  5. Step 5: Solve for x
    x = 13,371,527.27/3,628.40
  6. Step 6: Final answer
    x = 3,685.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.